Wareham Solar PV
Plymouth County, Massachusetts · EIA plant ID 62055 · Operator: NSTAR Electric Company
Nameplate3MWSummer 3 MW
Generators1in service
Net generation1GWh12 mo to Dec 2025
Capacity factor4%solar units, summer MW
Heat rate—thermal plants only
First online2018
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2018 | 0.2 | 7.0% | — |
| 2019 | 5.7 | 19.7% | — |
| 2020 | 5.2 | 17.8% | — |
| 2021 | 2.9 | 10.2% | — |
| 2022 | 1.3 | 4.6% | — |
| 2023 | 1.2 | 4.1% | — |
| 2024 | 1.2 | 4.0% | — |
| 2025 | 1.1 | 3.8% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| LG395 | Solar Photovoltaic | PV | 3.3 | 3.3 | Dec 2018 | Operating | — | coming soon |
Owner / operator
Operator: NSTAR Electric Company. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| NSTAR Electric Company | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Cranberry Highway Solar LLC | 4 MW | 0.9 km |
| 71 Charlotte Furnace Rd Hybrid(CSG) | 2 MW | 2 km |
| Acushnet AD Makepeace | 4 MW | 2.2 km |
| Tihonet Solar | 1 MW | 2.4 km |
| 299 Farm to Market Rd Hybrid(CSG) | 5 MW | 2.5 km |
| 77 Farm to Market Rd Hybrid(CSG) | 7 MW | 2.7 km |